calcium reactors?

[sandsifter]

i have been using a two part additive and just can't seem to get my numbers where i want them. i have been thinking of buying a calcium reactor, i have read up on them but i was hoping for some reviews from those who know. thanks

 

[nm reef]

I always used Seachem reef Advantage & Reef Builder to establsish calcium & alkalinity. Since adding a reactor the numbers are much more stable and the expense is much less.

 

[druluv]

Cal reactor or Kalk reactor are great investments, and time savers.